Feeding mechanism for cement-mixers.



' H. .BEISWBNGER.

FEEDING MECHANISM FOR CEMENT MIXERS.

APPLIQATIOI PILED EAR. 25, 1909. Patented Jan. 18, 1910. 3 SEEBTSSEBET1..-

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H. BEISWENGER.

FEEDING MEGHANISM' FOB CEMENT MIXER-S.

' APPLICATION FILED 1113.25, 1909. v t 94 ,317, j I Patented Jan.18,1910.

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I I v i I I Qwuewtoz e AS. We nyen HENRY BEISWENGER, or JACKSON,MICHIGAN.

FEEDING MECHANISM FOR CEMENT-MIXER-S.

Specification of Letters Patent. Patented Jan. 18, 1910.

Application filed March 25, 1909. Serial No. 485,727.

To all whom it may concern:

Be it known that I, I'IENRY Bmswmvosm' a citizen of the United States,residing at Jackson, in the county of Jackson and State of Michigan,have invented certain new and useful Improvements in Feeding Mechanismfor Cement-Mixers; and I do declare the following to be a full, clear,and exact description. of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

My invention relates to feeding mechanism for cement mixing machines.

The object of the invention is to provide a machine which will supplypredetermined quantities of cement and crushed stone and gravel.

A further object of the invention is to provide means for adjusting thefeed of the cement and of the crushed stone and gravel so that theproper proportions may be obtained for the quality of cement desired.

With these and other objects in view, the invention consists of certainnovel features of construction, combination and arrangement of parts aswill be more fully described and particularly pointed out in theappended claims.

In the drawings: Fi re 1 is a side elevationpartly in longitu inalsection; Fig. 2 is a vertical section on the line 2-2 of Fig. 1; Fig. 3is a section on the line 3-3 of Fig. 1; Fig. 4 is a detail sectionalview of the adjustment used for regulating the cement discharge. 1

Referring more especially to the drawings, 1 represents a truck which iscarried upon the supporting or traction wheels 2 and 3 and whichcarriesthe mixing mechanism, to be hereinafter described. Immediatelyabove the'truck, I provide a mixing cylinder 4, in which is journaled acentral shaft 5, driven in any suitable manner and whose ends aresupported in bracket bearings 6 and 7.

The forward end of this mixing shaft is provided with paddles 8, securedat diametricall opposite sides of individual hubs 8, keye to the shaftand which have their outer ends turned at an angle as shown, so as tothoroughly mix the cement and at the same time feed it toward thedischarge spirals 9. These spirals are connected at their forward andrear ends to rings 10, secured to the paddles 8, which extend from theirhubs at the four quarters, and are preferably six in number, connectedtogether at their lntermedlate points by a ring 11.

The rear end of the shaft 5, is mounted in a bushing, 12, which ispivotally connected to the bearing bracket 6. The sides 13. whlchsupport the bearing brackets 6 and 7 are separated sufiiciently to allowthe cement to pass from the measuring mechanism mounted thereon, at theforward end of the machine immediately over the mixing paddles 8 and 8.This measuring mechanism comprises a central cement hopper 14, which isdivided into separate chutes 1.5 and 16 by a V-shaped partition 17. Onopposite sides of the cementhopper 14, I provide receptacles 18 and 19,for crushed stone and gravel. These receptacles have their dischargeends alternately closed and opened by a mechanism which will behereinafter described.

Each of the receptacles or compartments 18 and 19 is provided withswinging partitions 20 and 21, which are controlled respectively bylevers 22 and 23, which are pivoted to the sides of the casing and haveadjusting segments 24. These partitions are hinged at their upper endsto the side wall of the compartment 14 and carry at-their lower endsbrushes 26, which wipe over the sliding gates 26 and 27, as they aremoved forward to dump the contents of the pockets, 28 and 29. Theseockets have their size determined by the posltion of the partitions 20and '21, and the contents thereof are supported by the bottom plate 30which is centrally apertured, as at 31 to permit the passage of thecement and the sand and gravel into the mixing chamber of the cylinder4. The gates 26 and 27 ride over the bottom plate and over the frictionrollers 32, con nected to the supporting pieces 33, which extend acrossthe machlne from girder to girder.

The pockets are connected together by side pieces 34, and both ofthemare connected by a pitman rod 35, (only one, of which is shown) to acrank arm 36 keyed to the driven shaft 37 which runs parallel to theshaft 5.

Extending across the machine, above the side plates, 34 is a shelf orbottom 38 which is adapted to support the sliding ates 39 and 40 whichclose the exits to the c utes 15 and 16. This plate is apertured so as-to permit the. passage of the cement from either chute.

. the studs 43 connected to the side lates 44,

to which the gates 39 and 40 are a justably secured. These lock membersmove with the side plates 34 andwhen the studs 43 reach the ends of theslots 42 theside plates 44 are constrained to move to carry with themthe gates 39 and 40, and to uncover one or the other of the chutes tothe aperture in the plate 38. v p

As shown'in Figs. 2 and 4, the sides of the ockets have studs 45',projecting outwardl rom the sides thereof, which extend throug slots 46in the side plates and are adapted to engage one of the series ofnotches 47, in

the upper side of the adjusting plates 48.

These adjusting lates are pivoted to the outside of the si e plates 44,and are secured in their engaging position with the studs 45 by setscrew 49.

From the foregoing description taken in connection with the accompanyingdrawings, the construction and operation of the invention will be readilunderstood without requirin a more exten ed explanation.

In or er that the cement may be kept from packing, I provide an agitator50, which is journaled upon a shaft, 51 extend-. ing across the hopper14, and which may be driven in any suitable manner.

Various changes in the form, proportion and the minor details ofconstruction may be'resorted to without departing from the principle orsacrificing any of the advantages of this invention as defined in theappended claims.

Having thus described my invention, what I claim as new, and desire tosecure by Letters-Patent is 1. In a device of the class described, astationary cement hopper and a pair of stationary gravel hoppersarranged on opposite sides thereof, means for supporting t e material insaid gravel hoppers, means for discharging alternately a predeterminedquantity of material from the gravel hoppers, adjustable swingingpartitions for determining the quantity of material discharged from thegravel hoppers, and dischar ing means for the cement hopper having ajusting devices carried by the gravel hopper discharging means forregulating the amount of material discharged from the cement hopper.

2. In a cement mixing machine, a plurality of stationary gravel hoppers,a stationary cement hopper arranged intermediate the gravel hoppers, aair of reciprocating gates for discharging a ternately a predeterminedquantity. irom the gravel hoppers, a pair of separated reciprocatinggates operating simultaneously with the gravel discharging means fordischarging a predetermined quantity of cement means to regulate theamount of gravel disc arged, and means to regulate the amount of cementdischarged.

In testimony whereof I have hereunto set my hand in presence of twosubscribing wit- C. R. WENDT, Jorm L. Fnm'r'ae.

. nesses.

